Watching, I have one on order.
From what I have read, you can oil it if you want to, it is dryer than the real thing & will suck up the oil.

I swiped this off another site.
If you flood a drying oil or other finish that dries and hardens onto the board, some of it will likely get under the frets and make them harder to remove cleanly down the road when it's time to re-fret or defret.

So applying the finish sparingly and carefully is important, regardless of what finish it is.